Example usage for java.awt.image PixelGrabber PixelGrabber

Introduction

In this page you can find the example usage for java.awt.image PixelGrabber PixelGrabber.

Prototype

public PixelGrabber(Image img, int x, int y, int w, int h, boolean forceRGB)

Source Link

Document

Create a PixelGrabber object to grab the (x, y, w, h) rectangular section of pixels from the specified image.

Usage

From source file:net.pms.medialibrary.commons.helpers.FileImportHelper.java

private static boolean hasAlpha(Image image) {
    // If buffered image, the color model is readily available
    if (image instanceof BufferedImage) {
        BufferedImage bimage = (BufferedImage) image;
        return bimage.getColorModel().hasAlpha();
    }/* w w w . j a  va  2 s . c o  m*/

    // Use a pixel grabber to retrieve the image's color model;
    // grabbing a single pixel is usually sufficient
    PixelGrabber pg = new PixelGrabber(image, 0, 0, 1, 1, false);
    try {
        pg.grabPixels();
    } catch (InterruptedException e) {
    }

    // Get the image's color model
    ColorModel cm = pg.getColorModel();
    return cm.hasAlpha();
}

From source file:lucee.runtime.img.Image.java

/**
 * This method returns true if the specified image has transparent pixels
 * @param image//from w  w w .ja  va2  s  .co m
 * @return
 */
public static boolean hasAlpha(java.awt.Image image) {
    // If buffered image, the color model is readily available
    if (image instanceof BufferedImage) {
        BufferedImage bimage = (BufferedImage) image;
        return bimage.getColorModel().hasAlpha();
    }

    // Use a pixel grabber to retrieve the image's color model;
    // grabbing a single pixel is usually sufficient
    PixelGrabber pg = new PixelGrabber(image, 0, 0, 1, 1, false);
    try {
        pg.grabPixels();
    } catch (InterruptedException e) {
    }

    // Get the image's color model
    ColorModel cm = pg.getColorModel();
    return cm.hasAlpha();
}